Company lists · Data refreshed September 2026

Top 25 Professional services firms based in Toronto, Canada

Name: Professional services firms based in Toronto, Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 348 companies tracked

RevenueBase identified 348 professional services firms headquartered in Toronto, Canada as of September 2026 and tracks 2,876 professional contacts across them, including 1,169 with verified work emails. Toronto is the largest hub.

This list covers professional services firms headquartered in Toronto, Canada, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

348Companies

2,876Contacts tracked

1,169Verified emails

Explore all 348 companies → Free signup · no credit card · 500 free credits

The 25 largest professional services firms based in Toronto, Canada

Ranked by team size

Top 25 of 348 professional services firms based in Toronto, Canada, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names professional services firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Crowe SobermanStrong evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	51-200	265
	“As an award-winning public accounting firm, we provide exceptional professional service (by being accessible, responsive and proactive) to meet the special and on-going individual…” Source: company website · checked Sep 5, 2026
2	Segal Gcse LLPIndirect evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	201-500	258
	“At Segal GCSE LLP, we embrace an ambitious firm philosophy: to provide our valued clients with an expansive service experience that enables greater opportunities for growth and…” Source: company website · checked Sep 5, 2026
3	Fuller Landau LLPIndirect evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	51-200	192
	“Work together with people excited by your goals and eager to address your unique business needs.” Source: company website · checked Sep 5, 2026
4	ZeifmansIndirect evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	51-200	168
	“Zeifmans is a full-service tax, accounting and consulting firm based in Toronto, Canada.” Source: company website · checked Sep 5, 2026
5	Lipton LLPIndirect evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	51-200	77
	“Quality Service.” Source: company website · checked Sep 5, 2026
6	Owens Wright LLPIndirect evidence	Toronto, CanadaHQ checked Sep 5, 2026	51-200	68
	“We blend big firm expertise and experience with the attention and service of a boutique firm, allowing us to deliver an exceptional client-focused experience across a broad range…” Source: company website · checked Sep 5, 2026
7	Adams MilesIndirect evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	51-200	63
	“Adams + Miles delivers accounting, audit, assurance and strategic consulting services to clients across sectors.” Source: company website · checked Sep 5, 2026
8	Stern Cohen AccountantsIndirect evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	51-200	57
	“The talented team at Stern Cohen specializes in accounting, tax, advisory, estate planning and bookkeeping services for businesses and not-for-profits in the Greater Toronto Area…” Source: company website · checked Sep 5, 2026
9	Yale PGC LLPIndirect evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	51-200	52
	“Yale PGC is one of the Greater Toronto Area’s most progressive and reputable mid-sized accounting, audit, taxation, and business advisory firms.” Source: company website · checked Sep 5, 2026
10	Rosenswig Mcrae Rosso LLPIndirect evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	51
	“Just as you're passionate about what you do, our team is as passionate about what we do.” Source: company website · checked Sep 5, 2026
11	Fruitman Kates LLPIndirect evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	51-200	48
	“Fruitman Kates LLP is a public accounting firm based out of 1055 Eglinton Ave W, Toronto, ON, Canada.” Source: company website · checked Sep 5, 2026
12	Dntw Toronto, LLPIndirect evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	42
	“DNTW Toronto LLP is a full-service, mid-sized accounting firm that has been providing a wide range of innovative accounting solutions to clients in Toronto and across Ontario for…” Source: company website · checked Sep 5, 2026
13	Hogg, Shain & ScheckStrong evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	40
	“Hogg, Shain & Scheck is a boutique professional accounting firm with over 46 years of experience providing audit, tax, and advisory services to entrepreneurs, corporations, and…” Source: company website · checked Sep 5, 2026
14	Solutia SDOStrong evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	51-200	34
	“Solutia SDO Limited is an independent management consulting firm which began in 2003 and remains owned and operated by seasoned professionals.” Source: company website · checked Sep 5, 2026
15	Sblr LLP Chartered Professional AccountantsIndirect evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	31
	“SBLR LLP is a rapidly evolving mid-sized accounting and tax firm that focuses on delivering top service to the small and medium-size entrepreneurial business owner.” Source: company website · checked Sep 5, 2026
16	Tator, Rose And Leong Chartered Professional AccountantsStrong evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	31
	“Tator, Rose and Leong has been providing high standard of professional services to small and medium sized business since 1974.” Source: company website · checked Sep 5, 2026
17	Miller Bernstein LLPIndirect evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	29
	“Miller Bernstein LLP is a mid-sized, full-service accounting firm.” Source: company website · checked Sep 5, 2026
18	GTA Accounting Business TAX TorontoStrong evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	29
	“GTA Accounting Professional Corporation, Chartered Professional Accountants, has extensive tax and accounting experience in the GTA.” Source: company website · checked Sep 5, 2026
19	Clark & Horner LLPIndirect evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	28
	“In 1990, prestigious accountants Graeme Clark & Richard Horner opened a new kind of firm that extended beyond taxes, to help their clients even more.” Source: company website · checked Sep 5, 2026
20	Orbit AccountantsIndirect evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	28
	“At Orbit Accountants, we are dedicated to being your trusted finance partner at every stage of growth.” Source: company website · checked Sep 5, 2026
21	Steinbergs LLPIndirect evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	25
	“We offer a broad range of legal services at our Toronto based law firm.” Source: company website · checked Sep 5, 2026
22	Walsh & Company Professional CorporationStrong evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	24
	“We are a chartered professional accountancy firm committed to providing great client service with a personal touch.” Source: company website · checked Sep 5, 2026
23	Prime TAX SolutionsStrong evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	1-10	22
	“Prime Tax Solutions is a Group of Professionals and Individuals Who Appreciate that Not Everyone’s Needs are the Same.” Source: company website · checked Sep 5, 2026
24	Sprackman TerrenceIndirect evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	20
	“Sprackman Terrence is a full-service accounting & tax, business management and family office firm.” Source: company website · checked Sep 5, 2026
25	G&g Partnership, LLPIndirect evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	20
	“We have been providing accounting, assurance, and creative tax minimization strategies to individuals, corporations, and entrepreneurs for more than four decades.” Source: company website · checked Sep 5, 2026

Showing 25 of 348 professional services firms based in Toronto, Canada

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Professional services firms based in Toronto, Canada at a glance

As of Sep 5, 2026

1-10Median size (employees)

TorontoLargest hub · 348 HQs

Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

235

11-50

51-200

201-500

501-1,000

Email recency for this list is measured across the whole Canada list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Toronto, over 348 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among professional services firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Toronto, Canada whose own description of what they do matches “professional services firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among professional services firms, and records with no verified work email. Companies headquartered outside Toronto are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 1,169 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 5, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Professional services firms by metro in Canada

Frequently asked

How many professional services firms are there based in Toronto, Canada?

RevenueBase identified 348 professional services firms headquartered in Toronto, Canada as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Crowe Soberman, headquartered in Toronto, tops this list with the largest team on record.

Which city has the most professional services firms?

Toronto leads with 348 headquartered companies, followed by Calgary (166) and Montreal (165).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,169 verified decision-maker contacts tracked across these 348 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 5, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.